The Trooping of the Colour has been performed since 1748 to celebrate the official birthday of the British sovereign.

The guardsman's fellow soldiers did not break formationScreengrab

Queen Elizabeth enjoyed her 91st official birthday today. She marked the occasion with an unprecedented speech in which she acknowledged the heartbreaking effects of the three major terrorist attacks committed against Britain in 2017 as well as the Grenfell Tower fire.

She said: "During recent visits in Manchester and London, I have been profoundly struck by the immediate inclination of people throughout the country to offer comfort and support to those in desperate need."

"United in our sadness, we are equally determined, without fear or favour, to support all those rebuilding lives so horribly affected by injury and loss," she added.